chore(deps): update actions/setup-dotnet action to v6 (#1796)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/ci.yml

@@ -90,15 +90,15 @@ jobs:
           path: '${{ github.workspace }}/.nuget/packages'
           key: "${{ runner.os }}-nuget-${{ hashFiles('**/Directory.Packages.props') }}-${{ hashFiles('**/dotnet-tools.json') }}"
       - name: 🔨 Use .NET 8.0 SDK
-        uses: actions/setup-dotnet@v5.4.0
+        uses: actions/setup-dotnet@v6.0.0
         with:
           dotnet-version: '8.0.x'
       - name: 🔨 Use .NET 9.0 SDK
-        uses: actions/setup-dotnet@v5.4.0
+        uses: actions/setup-dotnet@v6.0.0
         with:
           dotnet-version: '9.0.x'
       - name: 🔨 Use .NET 10.0 SDK
-        uses: actions/setup-dotnet@v5.4.0
+        uses: actions/setup-dotnet@v6.0.0
         with:
           dotnet-version: '10.0.x'
       - name: 🎁 dotnet tool restore

.github/workflows/close-milestone.yml

@@ -14,7 +14,7 @@ jobs:
         with:
           fetch-depth: 0
 
-      - uses: actions/setup-dotnet@v5
+      - uses: actions/setup-dotnet@v6
 
       - name: Install GitVersion
         uses: gittools/actions/gitversion/setup@v4.7.0

.github/workflows/draft-release.yml

@@ -21,7 +21,7 @@ jobs:
         with:
           fetch-depth: 0
 
-      - uses: actions/setup-dotnet@v5
+      - uses: actions/setup-dotnet@v6
 
       - name: Fetch all history for all tags and branches
         run: git fetch --prune

.github/workflows/update-milestone.yml

@@ -18,7 +18,7 @@ jobs:
           ref: ${{ github.sha }}
           fetch-depth: 0
 
-      - uses: actions/setup-dotnet@v5
+      - uses: actions/setup-dotnet@v6
 
       - name: Fetch all history for all tags and branches
         run: git fetch --prune